UDC 616.716.4-001-089.843-073.7-018
The issue of finding ways to optimize the course of posttraumatic bone regeneration is very relevant today. The aim of this study was to determine the dynamics of morphological, radiological, and lectin-histochemical characteristics of bone-ceramic regeneration after transplantation of octacalcium phosphate into an experimental defect of the rabbit mandible. The study was conducted on laboratory animals (male rabbits) divided into appropriate groups. Intact animals were used to study the normal structure of the bone tissue of the investigated area of the mandible. The posttraumatic state of the bone tissue in the area of the defect was monitored for 84 days. Morphological examination of the experimental bone defect of the mandible after implantation of osteoplastic material with octacalcium phosphate revealed numerous macroscopic signs of osteoregeneration that correlated with the dynamics of changes in bone surfaces, on radiographs and radiovisiographs and with the lectin-histochemical characteristics of the bone-ceramic regenerate, the peculiarities of the mineral density of the bone tissue of the mandible of the rabbit and the restoration of its quality after implantation of octacalcium phosphate into its cavity were clarified. A fairly high osteoinductive ability of octacalcium phosphate and its effectiveness compared with the control in healing a bone injury under a blood clot were established.
Kеy words: mandible/lower jaw, bone tissue regeneration, osteoplastic materials, morphological study, lectin-histochemistry.